中低密度街区太阳日总辐射研究

刘衍; 张沫岩; 曹其梦; 睿昕; 郭向斐; 杨柳

doi:10.13204/j.gyjzG19112911

中低密度街区太阳日总辐射研究

doi: 10.13204/j.gyjzG19112911

刘衍^1,2,
张沫岩²,
曹其梦²,
睿昕²,
郭向斐²,
杨柳^1,2

1. 西部绿色建筑国家重点实验室, 西安 710055;
2. 西安建筑科技大学建筑学院, 西安 710055

基金项目:

十三五重点研发计划"绿色建筑及工业化"专项：建筑本体与建筑能耗耦合计算模型开发（2017YFC0702201）；国家自然科学基金重点项目（51838011）；中国科协"青年人才托举工程"计划（2018QNRC001）。

详细信息

作者简介:
刘衍,男,1988年出生,博士,副教授。电子信箱:liuyan@xauat.edu.cn

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- 文章访问数: 58
- HTML全文浏览量: 4
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- 被引次数: 0
出版历程
- 收稿日期: 2019-11-29
- 刊出日期: 2020-10-17

RESEARCH ON TOTAL DAILY SOLAR RADIATION IN THE MIDDLE AND LOW DENSITY BLOCK

1. State Key Laboratory of Green Building in Western China, Xi'an 710055, China;
2. School of Architecture, Xi'an University of Architecture and Technology, Xi'an 710055, China

摘要

摘要: 绿色城市与建筑设计离不开对太阳辐射的精细化考量，研究城市太阳辐射分布规律有助于为绿色城市与建筑设计提供基础设计参数。基于街道全景图像，采用大数据的方法研究中低密度城区——西安明城区的太阳辐射分布规律，并对计算方法进行了实测验证，证明其准确有效。研究发现：天空开阔度（SVF）对太阳辐射的强度起决定性作用，其作用规律受到街道方向与宽度的共同影响。其中东西向街道的太阳辐射变化与SVF的相关性较南北向街道更低，但是SVF对东西向街道太阳辐射强度的影响却普遍大于南北向街道，并且除了太阳高度角较低的时段，街道越窄，SVF对太阳辐射强度的影响越强。因而在进行城市与建筑设计时，东西向街道与南北向街道应该采用不同的参数标准。
- 城市太阳辐射 /
- 街区形态 /
- 天空开阔度 /
- 太阳总辐射日总值
Abstract: Green city and architecture design needs accurate consideration of solar radiation. Studying the distribution patterns of urban solar radiation can provide basic design parameters for green city and architecture design. The distribution patterns of solar radiation in the middle and low density urban area of Xi'an — Xi'an old city was studied by using the street panoramic images. The calculation flow was verified to be accurate and effective by field experiment. The study found that in the middle and low density urban areas, SVF (Sky View Factor) had a decisive effect on the intensity of solar radiation, and its pattern on affecting solar radiation were influenced by the direction and width of streets. The correlation between SVF and the solar radiation in the east-west streets was lower than that in the north-south streets, but the effect of SVF on the east-west streets was generally higher than that on the north-south streets. The narrower the street was, the more intense the effect of SVF on solar radiation was, except for the period when the solar height angle was low. Therefore, in urban and architectural design, east-west streets and north-south streets should adopt different parameter standards.
- urban solar radiation /
- urban morphology /
- sky view factor /
- daily global solar radiation

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参考文献(17)

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